AIM : To analyse the operation time and curative effect of vitrectomy for treatment of Terson syndrome. METHODS: Five patients (6 eyes) with Terson syndrome underwent vitrectomy,accompanied with exchanging the gas for the liquid or argonion laser in some cases. RESULTS: Postoperatively, the visual acuity of 6 eyes was better than before; the vitreous cavities were all clear;retinal detachments were completely reattached. CONCLUSION: Vitrectomy is a safe and effective treatment for vitreous hemorrhage in Terson syndrome. Early surgery can not only recover the patients’ visual acuity but also decrease the complications.